EP3834956A4 - Bend correction method - Google Patents

Bend correction method Download PDF

Info

Publication number
EP3834956A4
EP3834956A4 EP19848710.0A EP19848710A EP3834956A4 EP 3834956 A4 EP3834956 A4 EP 3834956A4 EP 19848710 A EP19848710 A EP 19848710A EP 3834956 A4 EP3834956 A4 EP 3834956A4
Authority
EP
European Patent Office
Prior art keywords
correction method
bend correction
bend
correction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19848710.0A
Other languages
German (de)
French (fr)
Other versions
EP3834956A1 (en
Inventor
Koichi Kuroda
Shuji OTAO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of EP3834956A1 publication Critical patent/EP3834956A1/en
Publication of EP3834956A4 publication Critical patent/EP3834956A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/10—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP19848710.0A 2018-08-09 2019-08-06 Bend correction method Withdrawn EP3834956A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018150091 2018-08-09
PCT/JP2019/030998 WO2020032070A1 (en) 2018-08-09 2019-08-06 Bend correction method

Publications (2)

Publication Number Publication Date
EP3834956A1 EP3834956A1 (en) 2021-06-16
EP3834956A4 true EP3834956A4 (en) 2022-07-06

Family

ID=69414713

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19848710.0A Withdrawn EP3834956A4 (en) 2018-08-09 2019-08-06 Bend correction method

Country Status (5)

Country Link
US (1) US20210229153A1 (en)
EP (1) EP3834956A4 (en)
JP (1) JP7036215B2 (en)
CN (1) CN112543683A (en)
WO (1) WO2020032070A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114192611A (en) * 2020-09-17 2022-03-18 宝山钢铁股份有限公司 Device and method for full-length straightening of seamless steel tube nondestructive flaw detection sample tube
CN114210770B (en) * 2021-11-24 2022-11-01 栋梁铝业有限公司 Section bar straightening machine
CN114309147A (en) * 2021-12-31 2022-04-12 徐州徐工液压件有限公司 Straightening method for stretch bending combination

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6146320A (en) * 1984-08-10 1986-03-06 Nissan Motor Co Ltd Automatic stress relief press device
JPS63144822A (en) * 1986-12-05 1988-06-17 Nippon Steel Corp Straightening method for bend of long sized stock
JPH105872A (en) * 1996-06-26 1998-01-13 Nippon Seiko Kk Method for straightening bend of long stock
KR20140085835A (en) * 2012-12-27 2014-07-08 재단법인 포항산업과학연구원 Correcting apparatus for pipe

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5341631B2 (en) * 1973-04-20 1978-11-06
JPS63199026A (en) * 1987-02-12 1988-08-17 Toyota Central Res & Dev Lab Inc Method and device for strain straightening of work
JPS63199025A (en) 1987-02-14 1988-08-17 Sumitomo Metal Ind Ltd Method for straightening bend of pipe/bar stock
JPH02192820A (en) * 1989-01-19 1990-07-30 Sumitomo Metal Ind Ltd Method for straightening bends of tube/bar stock
JPH0829354B2 (en) * 1990-01-30 1996-03-27 株式会社クボタ Tube straightening method
JP2006281228A (en) * 2005-03-31 2006-10-19 Sumitomo Metal Ind Ltd Method for controlling roll-type pipe straightening machine
CN101421059B (en) * 2006-04-14 2010-08-18 住友金属工业株式会社 Method for correcting pipe and method for producing pipe by using that correction method
JP2008030090A (en) * 2006-07-28 2008-02-14 Jfe Steel Kk Method of straightening bend of shape steel and straightening apparatus for the shape steel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6146320A (en) * 1984-08-10 1986-03-06 Nissan Motor Co Ltd Automatic stress relief press device
JPS63144822A (en) * 1986-12-05 1988-06-17 Nippon Steel Corp Straightening method for bend of long sized stock
JPH105872A (en) * 1996-06-26 1998-01-13 Nippon Seiko Kk Method for straightening bend of long stock
KR20140085835A (en) * 2012-12-27 2014-07-08 재단법인 포항산업과학연구원 Correcting apparatus for pipe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020032070A1 *

Also Published As

Publication number Publication date
US20210229153A1 (en) 2021-07-29
CN112543683A (en) 2021-03-23
EP3834956A1 (en) 2021-06-16
JP7036215B2 (en) 2022-03-15
WO2020032070A1 (en) 2020-02-13
JPWO2020032070A1 (en) 2021-04-30

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